Guffey, Mary Ellen  <br/><br/>
Essentials of business communication/ 
Mary Ellen Guffey 
 - 5th ed. 
 - Australia :   South-Western College Publishing,   c2001. 
 - xxi, 499 p. ;   28 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0-324-01362-0 
<br/><br/><label>Dewey Class. No.: </label>Circ. 808.066 G949e 2001